I have hardwood floors in a house that I will be renting out. The floors are in fairly good shape, but they should at least be "lightly refinished". By that I mean that I think that doing something like a light steel wool cleaning and then applying a coat or two of polyurethane will work. I don't think they need any sanding, and I think sanding would take too much off. They don't have to end up being perfect, just cleaned up and a protective coating of polyurethane put on top.
My question is about the steel wool or other similar cleaning/buffing. How do people do this and/or what do they use? Is it okay to use one of those rotary type floor cleaning machines with a steel wool pad or other type of pad for the cleaning part? Is there something else that may be better or easier such as those square type orbital or vibration machines that places like Home Depot rent out that are usually next to the belt style floor sanders?